Differences in Complete Blood Count Component Rhythms
Author Information
Author(s): Anna Busza, Vani Sharma, Kendall Ferguson, Andreas Fawcett, Justin Knoll, Marta Iwanaszko, Phyllis Zee, Anna Fishbein
Primary Institution: Northwestern University Feinberg School of Medicine
Hypothesis
The study aims to systematically review the timing of peak and trough values of complete blood count (CBC) components over a 24-hour period.
Conclusion
The study identified significant time-dependent differences in CBC component rhythms, particularly for lymphocytes.
Supporting Evidence
- Lymphocytes peaked at 23:54 with a count of 2264.87 cells/µL.
- Erythrocytes, hemoglobin, and hematocrit peaked in the morning.
- Platelets, neutrophils, monocytes, and basophils peaked in the late afternoon.
- The study included 32 articles and 548 patients.
- Significant differences in CBC component rhythms were noted.
- Future research should focus on larger datasets for precision medicine.
- Meta-analysis utilized polynomial functions and forest plots for data analysis.
- Most studies did not measure blood values after midnight, affecting results.
Takeaway
Blood tests show that different types of blood cells change in number throughout the day, and knowing this can help doctors understand test results better.
Methodology
A systematic review and meta-analysis of studies evaluating CBC components with at least three collections over 24 hours.
Potential Biases
Potential biases include variability in study designs and participant characteristics.
Limitations
The study faced limitations such as small sample sizes and significant heterogeneity among studies.
Participant Demographics
The studies included healthy adults aged 18-64, with some studies involving patients with asthma.
Statistical Information
P-Value
0.010
Confidence Interval
1783.44 to 2746.31
Statistical Significance
p=0.010
Digital Object Identifier (DOI)
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